Burner for gas-stoves.



J. E. KENNEDY. BURNER POE GAS STOVES. 1 A'PPMOATIOH 211.111) JAN. 1v, 1912.

' 2 SHEETS-SHEET 1.

Patented Aug. 19, 191.3. l

SH01/nus j,

J. E. KENNEDY.

l BURNER FOR GAS STQVES.

I mw APPLICATION L:FILED .TAN.17,1912 .Mwf

Patented Aug. 19, 191,3.

2 SHEETS-SHEET 2.

UNTTED STATES PATENT OFFICE.

.ramas E. KENNEDY, E WASHINGTON, DISTRICT 2E-COLUMBIA.

BURNER FOR GASL'STOVES.

Letonia. y

To all 1 0/1.0m t may concern.'

Be it known that-l. JAMES E. KENNEDY,

a citizen of the United States, residing at Vburner and when a vessel is removed from the stove the fuel will be cut oif from the burner.

' F or the urpose described, use is made of a pilot lig t mechanism, the pilot light of which is arranged in the vicinity of the burner, the mechanism beingy connected with the supply pipe and operab e when the vessel is placed over the burner to open the' su ly ipe and permit a, ilow of the fuel toptiie biirner, said fuel bein there ignited by the ilot light, the said i ot light mechanism eing operable in t e reverse direction, when the vessel is. removed from the stove, to cut oi the supply of fuel to the burner.

ln the further disclosure-of the invention,

referenceis to be had to the accompanying.

drawings*constituting a part of this specification, in which similar characters of reference denote. corresponding parts in all the views, and 4in Which- Figure 1 is a plan view of a four burner stove equipped with my device. F ig. 2 is a vertica sectional vien7 taken on the line 2-.-2 in, Fig. 1, the pilot light mechanism being shown in closed position to cut o the supply of fuel to the burner. Fig. 3 is a similar sectional Vieri'Y showing the pilot lightmechanism in open position to permitfa supply of 'fuel to the burner, vessels mounted, upon the stove being shown in dotted lines.` Fig'. 4 is an enlarged vertical longitudinal sectionalv View through the valve mechanism showing the valve incloscd position. Fi 5 is a similar enlarged vertical longitudina sectional View showing the valve in open position to supply fuel to the burner. `Fig. 6 is an enlarged horizontal sectional view of the raive mechanism showing the arrangement of the needle Valve. Fig; i' is a 'vertical sectional viert taken on the line 7-.7 in Fig. G. Fig. Se is an enlarged Specification of Letters Patent. Appiicatlouled Ianur'y 17, 1912 Serial No. 671,631.

Patented Aug'.19,1913.

vertical sectional View of the` pilot light burner.

Referring more particularly to the views,

useis made of a stove-10 embodying an upper )late 11 provided with apertures -in Whic i are mounted grids 12, burners 13 being mounted beneath the grids 12 and connect'ed b burner pipes 14 and fuel controlling mec anisms 15 with a main supply pipe 16, a single' independent fuel Vcontrolling mechanism 15 bemg provided for each burner 13, said burners 13 and said fuel controlling mechanisms 15 being similar in arrangement, construction and operation.

An actuating member17 is mounted upon theistove 10 and comprises a bar -18 pivotally' mounted on the under side vf the plate 11 and enga ed by ,a spring 19, secured tov the underside of the plate 11 to normally' retain an end of the said'har in uppermost position, the mentioned end of the said bar terminating in afloraminous cap -2O, said cap having integrally formed therewith a bar- 21, provided at one end With a slot 21 in which is mounted to slide a pin 21b of a bell crank lever 22 mounted to swing on the under side of the plate `11 and terminating in 'a depending rod 23. The mentioned spring 19, engaging the bar .18 tends to normally retain the bars 18, 21 and bell crank lever 22 in uppermostposition, thus also retaining the cap 20 in uppermost position, said cap being conically shaped with the tip thereof extending slightly above the horizontal lplane ofthe grid 12, the said cap being provided with a depending inclined peripheral flange 24 which `will aid in the proper spreading of the flame which issues from the buxner 13, when the cap is in lower position, it being understood that a portion of the heat from the flame will pass through the foraminous portion of the. cap. It' will be noted that by making the cap 2O of a conical shape with the tip extending slightly abovethehorizontal plane ,0f the grid 12, a Vessel can be Vslid onto the grid to. pass over and engege the cap 2O and depress `the same, thus o viating the necessity o f lifting a heavy vessel ,to place the same over the burner 13 as will be readily understood.

The burner end of the burner pipe 14 terminates in the burner 13 as mentioned and.

the rear end of the burner pipefis provide/i with the usual air controllin Valve 25 an'd gas cock 2G, the rear end o f t ie said burner pipe terminating in the main supply pipe 1G.

-tlio Interposed in the burner pipe 14, between the supply pipe 16 and the gas cock 26, is a valve 27 comprising a rotatable valve body 28 provided with a grooved portion 29 which when the valve 27 is in open position will permit the gas in the supply pipe 16 to pass into the passage 30 of the burner pipe, said gas being adapted to flow to the burner when thegas cock 26 is in openposition and prevent it from iowing to the burner when the gas cock is in closed position, the initial passage 31 of the burner pipe being at all times open and not affected by the operation of the valve body 28 as shown in Figs. 4 and 5. The valve body 28 is provided with a passage 32 and threadedly mounted upon the valve vbody 2 8, to control the supply of gas through the'passage 32 is a needle valve 33 arranged to operate through a sti'iling. box 34 and terminating at the outer end in a suitable knurled handle 35. Threadedly connected to the valve body 28 is a pipesection 36', through which the gas in the passage 32 is adapted to flow when the needle valve 33 is in open position, the lower end of the said pipe section having threadedly connccted thereto a tubular socket 37, slidably encircled byv a sleeve 38 connected to a pilot tube member 39, forming a part of the fuel controllinor mechanism l5, the gas in the passage ciP the pipe section 36 being adapted to pass into the passage of the socket 37 and thence into the tube member 39, the forward end of the-tube member 39 being bentto extend upwardly beneath the cap 20 and having connected thereto a pilot light burner 40.

Mounted to encircle the pilot tube member 39 is a collarA 41 pivotally connected .to the lower .endof the depending rod 23 by a transverselyl extending pin 42. It will now be readily seen that when the valve 27 is in closed position relatively to the passage 30 of the burner pipe 14, and the capu20 is in its uppermost position, when a vessel is placed upon the grid 12 to de ress the ca 20the downward movement ci) the cap wi l operate the rod 23 thus imparting a swinging movement to the tube member 39 and rotating thevalve body 28 to move the same into open position relatively to the passage 30 as shown in Fig. 5 and if the gas cock 26 is in open position at this time the gas from the supply pipe 1,6 will pass into the passage 30 and thence to. the burner 13, it being also apparent that the How of gas from the s'upply pipe 16 to the tube member 39 is not affected by the rotatable movement of the valve member 28 nor by the operation of the gas cock 26, the mentioned supply of gas to the tube member being controllable by the lneedle valve 33j'j Thus when the vessel is removed from the grid 12 the action of the spring 19 will move the cap 20 upwardly, thus operating the depending rod 23 and swinging the tube member 39, which in turn -crank lever will rotate the valve' body 28 to move the sameinto closed position as shown in Fig. 4

to cut ott the supply of gas to the passage 30 of the burner pipe 14.

,The pilot light burner 40 comprises a casing 43 in which is mounted a body 44, composed of an incombustible material and provided with a longitudinally extending passage 45, the upper end of the said body ex- 4tendin beyond the upper end of the casing 43 an terminating 1n a tip 46' provided with a series of apertures connected with the passage 45. Threadedly mounted on the forward end of the pilot tube member 39 is a sleeve 47 provided with a seat 48 terminating in a passage 49, connecting with the passage 45 of the body 44, a, iilter member 50, such as absorbent cotton or the like, being mounted on the seat 48 and extending into the passage 49, the mentioned `filter member being provided to restrict the size of the fiame at the tip 46 and also to purify the gas before the same reaches the tip 46, by ab. sorbing from the 'gas any Amoisture or foreign matter that may be contained therein.

In the operation of my device, assuming that the cap 20 -is in its uppermost position, that the` gas cock is in open position and that the gas passing through'the tube member 39 from the supply pipe 16,-is ignited at the tip 46 oi the burner 40,'whe`n it is desired to heat the contents of a vessel, 'the vessel is slid onto the grid 12 to depress the cap 20 against the action of the spring 19 thus through the medium of the b ar 21, imparting a Swingin' movement to the bell 22 which in turnwill operate the tube member 39 to impart rotationto the -valve body29 and swing the same vinto open position, thus permitting the gas in thev Supply pipe and thence to-the burner 13, where the gas .will be ignited' by the pilot light of the burner 40.

in lowered position thecap will be arranged immediately 'above tlie burner and the articular construction of the cap as described will aid in properly spreading the ameft the burner while' at the same time the cap will not prevent the passage f the heat produced by the dame at the burner to the bottom of thcf vessel, inasmuch as the 'cap is provided with a foraminous portion and is arranged centrally tothe burner, over the usual opening rovided through the center of the burner.

y operating the ne le valve 33, the supply of gas to the pil light burner. 40 can 16 to pass into the passage 3.0 v

As mentioned heretofore when I -the cap 20 is be conveniently' regulated and by moving the gas cock 26, irrespectiveof the valve 27 ,A

the supply of gas to the burner 1 3- will be" ply of gas to the stove,

tomaia out 0H Without disturbing the iiovv of gas from the supply pipe to the pilot light burner 4.0.

lf it is desired to entirely out ofi" the supthe needle valve 33 can be moved into closed position, thus eutting o the supply of gas to the pilot light burner and if the cap 20 is in uppermost pos.tion,l the valve body 28 Will out off the supply of gas to the burner. However', to more eiiieientlyl prevent any `pis from flowing to the burner, the gas cock 26 can be moved into elosedposition and the gas Will be entirely out off from the burner and pilotr light burner.

As mentioned heretofore, the burners dis-` closed in Fig'. 1 and the fuel controlling meehauisni therefor, are similar in arrangement and construction to the particular burner and valve mechanism described in detail 'heretofore and although for lthe purpose of describing the arrangement and operation of the device I have described only one burner and one fuel contro-lling meehanism therefor, it will be understood that any number of burners and fuel controlling mechanisms may be employed in connection with any known make of stove to accomplish the desired result.

l. In a gas stove, the combination With a burner, of a pilot light situated above the burner, a cook for governing the flow of gas to the burner, a gas supply pipe for the pilot light, the said pipe being adapted to operate the said oook, a yieldingly supported sl'ireader-cap situated above the pilot light in a position to be operated by a cooking vessel, and means for transmitting motion from the spreader-cap to the said gas supply PlPe- 2. In a gas stove, burner, of a pilot light situated above the burner, a cock for governing the flow of gas to the burner, a gas supply pipe for the pilot light, the said pipe being adapted to operate the said cook, a yieldingly supported spreader-cap situated above the pilot light in a posit-ion to be operated by a cooking vessel, Ameans for transmittingT motion .trom the spreader-cap to the said gas supply pipe, and a valve carried by the gas supply pipe for controlling the supply of gas from the said cookto the Said pilot light.

3. In a gas stove, the combination with a burner, of a pilot light normally situated above the burner, a oook for governing the loW/of gas to the burner, a manually op erable valve for governing the flow of gas to the burner independently of the said oook, a gas supply pipe for the pilot tube and operable to aotuate the said cock, a spreader-cap situated above the pilot light in a position to be operated by a cooking vessel, and means for transmitting' motion from the spreader-cap to the said gas.

supply pipe to aotuate the szme and operate the said cock.

In testimony whereof l aiiix in presence of two Witnesses.

JAMES E. KENNEDY. `Witnesses:

l?. A. Hoeren, BENNETT S. JoNns.

my signature the combination With av 

